This study examines the stock market's reaction to food tampering incidents to calculate the cost of such incidents to shareholders. It found that a firm loses approximately US$613 million in equity value on the day that news of a tampering incident is made public. The targeted firm also incurs additional costs that are associated with extra couponing to attract consumers after a tampering incident, litigation costs, and in some cases costs associated with removing the product from the market. Because food tampering incidents seem to only occur while the food item is in “the stream of commerce” and outside the manufacturer's direct control, the use of surveillance along the distribution channel and consumer education could be helpful in averting further incidents and possibly deaths.

中文翻译：

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股市对美国食品篡改消息的反应

本研究考察了股市对食品篡改事件的反应，以计算此类事件对股东的成本。调查发现，在篡改事件的消息公之于众的当天，一家公司的股权价值损失了约 6.13 亿美元。目标公司还会产生额外费用，这些费用与在篡改事件发生后吸引消费者的额外优惠券、诉讼费用以及在某些情况下与将产品从市场上移除相关的费用相关。由于食品篡改事件似乎只发生在食品处于“贸易流”和制造商直接控制之外的情况下，因此在分销渠道中使用监控和消费者教育可能有助于避免进一步的事件和可能的死亡。